LOPS Low-Voltage Bus Overvoltage Protection Device - China Suppliers & Factory Solutions
Functional features
High energy nonlinear resistor chip matching technology
The nonlinear resistor adopts unique heat dissipation technology and fully sealed process, with excellent heat dissipation and moisture prevention effects, stable working performance, long service life, and safety and reliability.
Overvoltage peak cutting technology
When a transient overvoltage occurs in the system, when the peak value of the overvoltage exceeds 1.2 times the rated voltage peak value, the overvoltage peak interceptor immediately acts to cut off the high voltage wave head, ensuring the safe operation of various load equipment under the busbar.
Secondary pressure limiting technology
After the operation of the first level voltage limiting unit, if the bus voltage still exceeds the set allowable value, the LOPS equipment will put in an overvoltage chopper to quickly limit the bus voltage to 1.2 times or less.
Rapid response technology
The action delay is small, the first level has no delay response, and the second level responds within 2 milliseconds. Good steep wave response characteristics, short conduction time of nonlinear resistors, active protection, and good protection performance.
Overvoltage recording technology
The LOPS low-voltage bus overvoltage suppression equipment can automatically record parameters such as the number of actions, action time, and bus voltage during action, providing a basis for system technical analysis.
Products specification
| NO. | Spec | Arrestor | TBP | LOPS | |
|---|---|---|---|---|---|
| 1 | Action voltage | 2~3 times | 2~3 times | 1.25 times | |
| 2 | Residual voltage | 4~6 times | 3 times | 1.35 times | |
| 3 | Withstand energy | 6kV | 75A/2ms; 40kA/10μs; <15kJ | 400A/2ms; 40kA/10μs; <15kJ | 1kA/2ms; 600kA/10μs; ≥1MJ |
| 10kV | 75A/2ms; 40kA/10μs; <20kJ | 400A/2ms; 40kA/10μs; <20kJ | 2kA/2ms; 1MA/10μs; ≥ 2MJ | ||
| 35kV | 400A/2ms; 65kA/10μs; <60kJ | 400A/2ms; 65kA/10μs; <60kJ | 10kA/2ms; 2MA/10μs; ≥ 75MJ | ||
| 4 | Risk | Unknown status, explode | Unknown status, explode | Controllable operation status without explosion | |
| 5 | Response time | ≤50ns | ≤50ns | ≤50ns | |
| 6 | Leakage current | ≤1mA | ≤1mA | ≤1mA | |
| 7 | Effectiveness | Lightning overvoltage switching overvoltage | switching overvoltage Resonance overvoltage | All overvoltage | |
Frequently Asked Questions
Q1: What are the main benefits of LOPS compared to traditional Arrestors and TBPs?
LOPS offers a significantly lower action voltage (1.25 times) and residual voltage (1.35 times) compared to Arrestors and TBPs. Additionally, it operates under controllable conditions without the risk of explosion and provides protection against all types of overvoltage.
Q2: How does the Secondary Pressure Limiting Technology protect the system?
If the bus voltage continues to exceed the allowable threshold after the first-level voltage limiting unit triggers, the system deploys an overvoltage chopper to quickly restrict the bus voltage to 1.2 times or less.
Q3: What makes the resistor chip technology in this equipment unique?
It utilizes a high-energy nonlinear resistor chip matching technology with a unique heat dissipation design and a fully sealed process, ensuring excellent moisture prevention, stable operation, and an extended service life.
Q4: How fast does the LOPS low-voltage bus overvoltage suppression equipment respond?
The response time is highly rapid. The first level responds with zero delay, and the second level responds within 2 milliseconds. The overall response time rating is ≤50ns, featuring active protection and short conduction time.
Q5: What data does the overvoltage recording technology capture?
The equipment automatically logs key parameters during operation, including the total number of actions, precise action times, and bus voltage levels during the event, which helps facilitate system technical analysis.